Regeneration system and flue gas treatment system

Abstract

The invention discloses a regeneration system and a flue gas treatment system.The regeneration system comprises a regeneration tower, a reboiler and a liquid distribution assembly, the regeneration tower is provided with a cavity, a first inlet and a first outlet, the first inlet and the first outlet are both communicated with the cavity, the regeneration tower is suitable for introducing rich liquid, one end of the reboiler is communicated with the first outlet of the regeneration tower, and the other end of the reboiler is communicated with the second outlet of the regeneration tower. One end of the reboiler is communicated with the first inlet, so that rich liquor in the regeneration tower flows into the reboiler through the first outlet, so that the rich liquor is heated into a gas-liquid mixture through the reboiler, the other end of the reboiler is communicated with the first inlet, so that the gas-liquid mixture in the reboiler flows into the regeneration tower, and the liquid distribution assembly is provided with a channel and is arranged in the first inlet; the channel extends in the circumferential direction of the regeneration tower, and the two ends of the channel communicate with the reboiler and the cavity correspondingly, so that a gas-liquid mixture in the reboiler flows into the regeneration tower through the channel. The regeneration system has the advantages of small impact on internal parts, uniform gas-liquid distribution, good regeneration effect and the like.

Description

Technical Field

[0001] The present invention relates to the field of flue gas treatment, and in particular to a regeneration system and a flue gas treatment system. Background Art

[0002] The flue gas discharged from coal-fired boilers is generally treated by high-temperature adsorption in an adsorption tower. The high-temperature flue gas with a temperature of about 200°C is passed into the adsorption tower. The pollutants (sulfides and nitrogen oxides) in the high-temperature flue gas are adsorbed and removed by the adsorbent in the adsorption tower. The saturated adsorbent is transported to the regeneration tower for heating and desorption regeneration. The pollutants are desorbed from the adsorbent and recycled, and the adsorbent is regenerated.

[0003] In the related art, the rich liquid is heated in a reboiler and then enters a regeneration tower, which promotes the regeneration of the rich liquid and improves the regeneration effect. The rich liquid heated in the reboiler will form a gas-liquid mixture of gas and liquid, which will have a greater impact on the internal parts after entering the regeneration tower, and the uneven distribution of gas and liquid will affect the regeneration effect. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides a regeneration system with small impact on internal parts and good regeneration effect.

[0006] The embodiment of the present invention provides a flue gas treatment system with simple structure and low cost.

[0007] The regeneration system according to an embodiment of the present invention includes: a regeneration tower, the regeneration tower having a chamber, a first inlet and a first outlet, the first inlet and the first outlet are both connected to the chamber, and the regeneration tower is suitable for introducing rich liquid; a reboiler, one end of the reboiler is connected to the first outlet of the regeneration tower, so that the rich liquid in the regeneration tower flows into the reboiler through the first outlet so that the rich liquid is heated into a gas-liquid mixture by the reboiler, and the other end of the reboiler is connected to the first inlet, so that the gas-liquid mixture in the reboiler flows into the regeneration tower; a liquid distribution component, the liquid distribution component has a channel and the liquid distribution component is arranged in the first inlet, the channel extends along the circumference of the regeneration tower and the two ends of the channel are respectively connected to the reboiler and the chamber, so that the gas-liquid mixture in the reboiler flows into the regeneration tower through the channel.

[0008] The regeneration system of the embodiment of the present invention is provided with a liquid distribution component so that the gas-liquid mixture is dispersed in the chamber, thereby improving the uniformity of the gas-liquid distribution, preventing the gas-liquid mixture from causing a large impact on the internal parts of the regeneration tower, extending the service life of the regeneration tower, and improving the regeneration effect of the regeneration tower.

[0009] In some embodiments, the liquid distribution component includes: a mounting plate; a liquid distribution member, the liquid distribution member is arranged on the mounting plate, and the cross-sectional area of ​​the outer peripheral surface of the liquid distribution member gradually increases from the first inlet toward the interior of the regeneration tower; a liquid distribution plate, the liquid distribution plate is arranged on the mounting plate and is located on one side of the liquid distribution member, the liquid distribution plate and the liquid distribution member are spaced apart to form the channel, so that the airflow flowing into the first inlet flows into the regeneration tower through the liquid distribution member.

[0010] In some embodiments, the liquid distribution member includes a first plate and a second plate, the first plate and the second plate are both vertical plates and are both arranged on the mounting plate, the first plate and the second plate both extend from the first inlet toward the interior of the regeneration tower, one end of the first plate is connected to one end of the second plate and the extension direction of the first plate and the extension direction of the second plate intersect at an angle, the liquid distribution plate is arranged on a side of the first plate away from the second plate, and / or the liquid distribution plate is arranged on a side of the second plate away from the first plate.

[0011] In some embodiments, the liquid distribution plate includes: a plurality of first liquid distribution plates, a plurality of first liquid distribution plates are vertical plates and are all arranged on the mounting plate, a plurality of first liquid distribution plates are all arranged on a side of the first plate away from the second plate, each of the first liquid distribution plates extends from the first inlet toward the interior of the regeneration tower and the extension direction of the first liquid distribution plate intersects the radial direction of the regeneration tower at an angle, a plurality of first liquid distribution plates are arranged at intervals, and two adjacent first liquid distribution plates define the channel; and / or a plurality of second liquid distribution plates, a plurality of second liquid distribution plates are vertical plates and are all arranged on the mounting plate, a plurality of second liquid distribution plates are all arranged on a side of the second plate away from the first plate, each of the second liquid distribution plates extends from the first inlet toward the interior of the regeneration tower and the extension direction of the second liquid distribution plate intersects the radial direction of the regeneration tower at an angle, a plurality of second liquid distribution plates are arranged at intervals, and two adjacent second liquid distribution plates define the channel.

[0012] In some embodiments, at least a portion of the first liquid distribution plate extends along the circumference of the regeneration tower and is inclined toward the interior of the regeneration tower, and / or at least a portion of the second liquid distribution plate extends along the circumference of the regeneration tower and is inclined toward the interior of the regeneration tower.

[0013] In some embodiments, the distance between two adjacent first liquid distribution plates gradually increases in the direction away from the liquid distribution member, and / or the distance between two adjacent second liquid distribution plates gradually increases in the direction away from the liquid distribution member.

[0014] In some embodiments, the distance between two adjacent first liquid distribution plates gradually increases from top to bottom, and / or the distance between two adjacent second liquid distribution plates gradually increases from top to bottom.

[0015] In some embodiments, there are multiple first inlets, which are spaced apart along the circumference of the regeneration tower, there are multiple liquid distribution components, which are arranged in the first inlet in a one-to-one correspondence, and the reboiler is connected to the multiple first inlets.

[0016] In some embodiments, the regeneration system further includes a delivery pipe, which surrounds the outer circumference of the regeneration tower, and one end of the delivery pipe is connected to the reboiler so that the gas-liquid mixture in the reboiler flows into the delivery pipe, and a plurality of delivery ports are provided on the delivery pipe, and the plurality of delivery ports are connected to the plurality of first inlets one by one.

[0017] The flue gas treatment system according to an embodiment of the present invention includes: an absorption tower, wherein a lean liquid is provided in the absorption tower and is suitable for passing flue gas so that the lean liquid absorbs carbon dioxide in the flue gas to convert the lean liquid into a rich liquid; a regeneration system, wherein the regeneration system is the regeneration system of the above embodiment, wherein one end of the regeneration tower of the regeneration system is connected with one end of the absorption tower so that the rich liquid in the absorption tower flows into the regeneration tower so that the rich liquid is decomposed into the lean liquid, and the other end of the regeneration tower is connected with the other end of the absorption tower so that the lean liquid in the regeneration tower flows into the absorption tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a flue gas treatment system according to an embodiment of the present invention.

[0019] Figure 2 4 is a cross-sectional view of a regeneration tower of a regeneration system according to an embodiment of the present invention.

[0020] Figure 3 yes Figure 2 A partial enlarged view of the .

[0021] Flue gas treatment system 100;

[0022] Absorption tower 1; regeneration tower 2; first inlet 21; first outlet 22;

[0023] Reboiler 3;

[0024] Liquid distribution assembly 4; mounting plate 41; liquid distribution member 42; first plate 421; second plate 422; liquid distribution plate 43; first liquid distribution plate 431; second liquid distribution plate 432; channel 44;

[0025] Delivery pipe 5. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] The following describes a regeneration system according to an embodiment of the present invention with reference to the accompanying drawings.

[0028] like Figure 1-3 As shown, the regeneration system according to an embodiment of the present invention includes a regeneration tower 2, a reboiler 3 and a liquid distribution component 4.

[0029] The regeneration tower 2 has a chamber, a first inlet 21 and a first outlet 22. The first inlet 21 and the first outlet 22 are both connected to the chamber. The regeneration tower 2 is suitable for introducing rich liquid. Specifically, Figure 1 As shown, the regeneration tower 2 is a tower body extending in the up-down direction, and the regeneration tower 2 has a first inlet 21, a first outlet 22, a second inlet and a second outlet. The first inlet 21, the first outlet 22, the second inlet and the second outlet are all connected to the chamber, the second inlet is located at the top of the regeneration tower 2, and the second outlet is located at the bottom of the regeneration tower 2. The rich liquid can flow into the chamber through the second inlet, and after being regenerated and decomposed into lean liquid in the chamber of the regeneration tower 2, it flows out of the regeneration tower 2 from the second outlet.

[0030] One end of the reboiler 3 is connected to the first outlet 22 of the regeneration tower 2, so that the rich liquid in the regeneration tower 2 flows into the reboiler 3 through the first outlet 22 so that the rich liquid is heated by the reboiler 3 to generate a gas-liquid mixture. The other end of the reboiler 3 is connected to the first inlet 21, so that the gas-liquid mixture in the reboiler 3 flows into the regeneration tower 2. Specifically, Figure 1 As shown, the inlet of the reboiler 3 is connected to the first outlet 22 of the regeneration tower 2, and the rich liquid flowing out of the regeneration tower 2 is heated by the reboiler 3, so that the rich liquid is decomposed into a gas-liquid mixture (lean liquid and carbon dioxide) by heat. The outlet of the reboiler 3 is connected to the first inlet 21 of the regeneration tower 2, so that carbon dioxide and lean liquid flow into the regeneration tower 2, so that the gas-liquid mixture heats the rich liquid in the regeneration tower 2, so that part of the rich liquid is heated to generate lean liquid and carbon dioxide.

[0031] The liquid distribution assembly 4 has a channel 44 and is disposed in the first inlet 21. The channel 44 extends along the circumference of the regeneration tower 2 and both ends of the channel 44 are connected to the reboiler 3 and the chamber, respectively, so that the gas-liquid mixture in the reboiler 3 flows into the regeneration tower 2 through the channel 44. Specifically, Figure 1-3As shown, the liquid distribution component 4 is arranged in the first inlet 21, and the liquid distribution component 4 has a channel 44 extending along the circumference of the regeneration tower 2, the inlet of the channel 44 is connected with the outlet of the reboiler 3, and the outlet of the channel 44 is connected with the chamber, thereby, the gas-liquid mixture (lean liquid and carbon dioxide) flowing out of the reboiler 3 flows into the chamber through the channel 44.

[0032] The regeneration system of the embodiment of the present invention is provided with a liquid distribution component 4, so that the gas-liquid mixture after being heated and flowing out through the reboiler 3 flows into the liquid distribution component 4. The gas-liquid mixture is dispersed in the chamber through the liquid distribution component 4, thereby improving the uniformity of the distribution of the gas-liquid mixture, preventing the gas-liquid mixture from directly causing a large impact on the internal parts of the regeneration tower 2, extending the service life of the regeneration tower 2, and improving the regeneration effect of the regeneration tower 2.

[0033] In some embodiments, the liquid distribution assembly 4 includes a mounting plate 41 , a liquid distribution member 42 and a liquid distribution plate 43 .

[0034] The liquid distributing member 42 is disposed on the mounting plate 41, and the cross-sectional area of ​​the outer peripheral surface of the liquid distributing member 42 gradually increases from the first inlet 21 toward the inside of the regeneration tower 2. Specifically, as Figure 1-3 As shown, the mounting plate 41 is a horizontal plate, the liquid distribution member 42 is arranged on the mounting plate 41 and the cross-sectional area of ​​the outer peripheral surface of the liquid distribution member 42 increases from the outer to the inner component. When the gas-liquid mixture flows into the first air inlet, due to the setting of the liquid distribution member 42, the gas-liquid mixture can be distributed on both sides of the liquid distribution member 42 through the liquid distribution member 42.

[0035] The liquid distribution plate 43 is disposed on the mounting plate 41 and is located on one side of the liquid distribution member 42. The liquid distribution plate 43 and the liquid distribution member 42 are spaced apart to form a channel 44, so that the airflow flowing into the first inlet 21 flows into the regeneration tower 2 through the liquid distribution member 42. Specifically, as Figure 2 and Figure 3 As shown, the liquid distribution plate 43 is a vertical plate extending up and down and is arranged on the mounting plate 41. The arrangement of the liquid distribution plate 43 can be carried out according to actual conditions. For example, the liquid distribution plate 43 can be arranged on the left side of the liquid distribution member 42 and spaced apart from the liquid distribution member 42 to form a channel 44, or the liquid distribution plate 43 can be arranged on the right side of the liquid distribution member 42 and spaced apart from the liquid distribution member 42 to form a channel 44, thereby, the gas-liquid mixture is dispersed in the regeneration tower 2 through the channel 44.

[0036] In some embodiments, the liquid distribution member 42 includes a first plate 421 and a second plate 422, both of which are vertical plates and are disposed on the mounting plate 41, and both of which extend from the first inlet 21 toward the interior of the regeneration tower 2, one end of the first plate 421 is connected to one end of the second plate 422, and the extension direction of the first plate 421 and the extension direction of the second plate 422 intersect at an angle, and the liquid distribution plate 43 is disposed on a side of the first plate 421 away from the second plate 422, and / or, the liquid distribution plate 43 is disposed on a side of the second plate 422 away from the first plate 421. Specifically, as Figure 2 and Figure 3 As shown, the first plate 421 and the second plate 422 are both vertical plates, and the first plate 421 and the second plate 422 are both arranged on the mounting plate 41 and the first plate 421 and the second plate 422 generally form a herringbone shape. The liquid distribution plate 43 can be arranged according to actual conditions, for example: the liquid distribution plate 43 is arranged on the left side of the first plate 421 and is spaced apart from the first plate 421 to form a channel 44, or the liquid distribution plate 43 is arranged on the right side of the second plate 422 and is spaced apart from the second plate 422 to form a channel 44, thereby, the gas-liquid mixture is diverted through the first plate 421 and the second plate 422, so that a part of the gas-liquid mixture flows into the left side of the first plate 421, and the other part of the gas-liquid mixture flows into the right side of the second plate 422, so that the gas-liquid mixture is dispersed in the regeneration tower 2, thereby preventing the gas-liquid mixture from seriously scouring the internal parts of the regeneration tower 2 in the regeneration tower 2, thereby ensuring the service life of the regeneration tower 2.

[0037] In some embodiments, the liquid distribution plate 43 includes a plurality of first liquid distribution plates 431 and a plurality of second liquid distribution plates 432 .

[0038] Multiple first liquid distribution plates 431 are all vertical plates and are all arranged on the mounting plate 41. Multiple first liquid distribution plates 431 are all arranged on the side of the first plate 421 away from the second plate 422. Each first liquid distribution plate 431 extends from the first inlet 21 toward the inside of the regeneration tower 2, and the extension direction of the first liquid distribution plate 431 intersects with the radial direction of the regeneration tower 2 at an angle. Multiple first liquid distribution plates 431 are arranged at intervals, and two adjacent first liquid distribution plates 431 define a channel 44. Multiple second liquid distribution plates 432 are all vertical plates and are all arranged on the mounting plate 41. Multiple second liquid distribution plates 432 are all arranged on the side of the second plate 422 away from the first plate 421. Each second liquid distribution plate 432 extends from the first inlet 21 toward the inside of the regeneration tower 2, and the extension direction of the second liquid distribution plate 432 intersects with the radial direction of the regeneration tower 2 at an angle. Multiple second liquid distribution plates 432 are arranged at intervals, and two adjacent second liquid distribution plates 432 define a channel 44. Specifically, as Figure 3As shown, a plurality of first liquid distribution plates 431 are arranged on the left side of the first plate 421 and are spaced apart along the inner-outer direction to form a plurality of channels 44. The extension direction of the plurality of first liquid distribution plates 431 can extend along the circumference of the regeneration tower 2. The plurality of first liquid distribution plates 431 can improve the dispersion efficiency of the gas-liquid mixture on the left side of the liquid distribution member 42. A plurality of second liquid distribution plates 432 are arranged on the right side of the second plate 422 and are spaced apart along the inner-outer direction to form a plurality of channels 44. The extension direction of the plurality of second liquid distribution plates 432 can extend along the circumference of the regeneration tower 2. The dispersion efficiency of the gas-liquid mixture on the right side of the liquid distribution member 42 can be improved. Thus, the plurality of first liquid distribution plates 431 and the plurality of second liquid distribution plates 432 help to more evenly distribute the gas-liquid mixture in the entire chamber of the regeneration tower 2, so that the gas-liquid mixture forms a denser flow pattern in the regeneration tower 2, thereby improving the efficiency of the regeneration process.

[0039] In some embodiments, at least a portion of the first liquid distribution plate 431 extends along the circumference of the regeneration tower 2 and is inclined toward the inside of the regeneration tower 2, and at least a portion of the second liquid distribution plate 432 extends along the circumference of the regeneration tower 2 and is inclined toward the inside of the regeneration tower 2. Specifically, Figure 3 As shown, the left end of the first liquid distribution plate 431 extends along the circumference of the tower body of the regeneration tower 2 and is inclined toward the interior of the regeneration tower 2, and the right end of the second liquid distribution plate 432 extends along the circumference of the tower body of the regeneration tower 2 and is inclined toward the interior of the regeneration tower 2. Therefore, through the arrangement of the first liquid distribution plate 431 and the second liquid distribution plate 432, the gas-liquid mixture flowing into the regeneration tower 2 is further improved, and the gas-liquid mixture is prevented from causing a large impact on the inner wall of the tower body of the regeneration tower 2, thereby ensuring the service life of the regeneration tower 2.

[0040] In some embodiments, the distance between two adjacent first liquid distribution plates 431 gradually increases in a direction away from the liquid distribution member 42. Figure 3 As shown, the distance between two adjacent first liquid distribution plates 431 gradually increases from right to left (in other words, the cross-sectional area of ​​the channel 44 formed by the two adjacent first liquid distribution plates 431 gradually increases from right to left). As a result, the gas pressure of the gas-liquid mixture passing through the channel 44 gradually decreases, thereby reducing the impact of the gas-liquid mixture on the regeneration tower 2.

[0041] In some embodiments, the distance between two adjacent second liquid distributing plates 432 gradually increases in a direction away from the liquid distributing member 42. Figure 3 As shown, the distance between two adjacent second liquid distribution plates 432 gradually increases from left to right (in other words, the cross-sectional area of ​​the channel 44 formed by two adjacent first liquid distribution plates 431 gradually increases from left to right). As a result, the gas pressure of the gas-liquid mixture passing through the channel 44 gradually decreases, thereby reducing the impact of the gas-liquid mixture on the regeneration tower 2.

[0042] In some embodiments, the spacing between two adjacent first liquid distribution plates 431 gradually increases from top to bottom, and the spacing between two adjacent second liquid distribution plates 432 gradually increases from top to bottom. In other words, the cross-sectional area of ​​the channel 44 formed by the two adjacent first liquid distribution plates 431 gradually decreases from top to bottom, and the cross-sectional area of ​​the channel 44 formed by the two adjacent second liquid distribution plates 432 gradually decreases from top to bottom, thereby reducing the upward impact force of the gas-liquid mixture, thereby ensuring the service life of the regeneration tower 2.

[0043] In some embodiments, there are multiple first inlets 21, which are spaced apart along the circumference of the regeneration tower 2, there are multiple liquid distribution components 4, which are arranged in the first inlets 21 in a one-to-one correspondence, and the reboiler 3 is connected to the multiple first inlets 21. Thus, the gas-liquid mixture flowing out of the reboiler 3 can flow into the regeneration tower 2 evenly from multiple positions, further improving the distribution uniformity of the gas-liquid mixture, thereby improving the regeneration efficiency.

[0044] In some embodiments, the regeneration system further includes a delivery pipe 5, which surrounds the outer circumference of the regeneration tower 2, and one end of the delivery pipe 5 is connected to the reboiler 3, so that the lean liquid in the reboiler 3 flows into the delivery pipe 5, and the delivery pipe 5 is provided with a plurality of delivery ports, which are connected to the plurality of first inlets 21 one by one. Specifically, Figure 2 As shown, the delivery pipe 5 can be annular and sleeved on the outer circumferential surface of the regeneration tower 2. A plurality of delivery ports are provided on the delivery pipe 5. The number of the plurality of delivery ports is equal to the number of the plurality of first inlets 21. Each delivery port is connected to a first inlet 21, and the inlet of the delivery pipe 5 is connected to the outlet of the reboiler 3. Thus, the gas-liquid mixture generated by the reboiler 3 can be transported to the regeneration tower 2 through the delivery pipe 5.

[0045] The flue gas treatment system 100 according to the embodiment of the present invention includes an absorption tower 1 and a regeneration system.

[0046] The absorption tower 1 is provided with a lean liquid and is suitable for passing flue gas so that the lean liquid absorbs carbon dioxide in the flue gas to convert the lean liquid into a rich liquid. Thus, carbon dioxide in the flue gas is absorbed by the absorption tower 1, and the lean liquid is converted into a rich liquid after absorbing carbon dioxide.

[0047] The regeneration system is the regeneration system of any one of the above embodiments, one end of the regeneration tower 2 of the regeneration system is connected to one end of the absorption tower 1, so that the rich liquid in the absorption tower 1 flows into the regeneration tower 2, so that the rich liquid is decomposed into lean liquid, and the other end of the regeneration tower 2 is connected to the other end of the absorption tower 1, so that the lean liquid in the regeneration tower 2 flows into the absorption tower 1. Specifically, Figure 1As shown, the outlet of the absorption tower 1 is connected to the second inlet of the regeneration tower 2, and the rich liquid in the absorption tower 1 flows into the regeneration tower 2, thereby decomposing the rich liquid into lean liquid. The outlet of the absorption tower 1 is connected to the second inlet of the regeneration tower 2, and the lean liquid in the regeneration tower 2 flows into the absorption tower 1.

[0048] The flue gas treatment system 100 of the embodiment of the present invention has the advantages of simple structure, low cost, and high lean liquid to rich liquid conversion efficiency.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A regeneration system, characterized in that: include: A regeneration tower, the regeneration tower having a chamber, a first inlet and a first outlet, the first inlet and the first outlet are both connected to the chamber, and the regeneration tower is suitable for introducing rich liquid; a reboiler, one end of the reboiler being communicated with the first outlet of the regeneration tower so that the rich liquid in the regeneration tower flows into the reboiler through the first outlet so that the rich liquid is heated into a gas-liquid mixture by the reboiler, and the other end of the reboiler being communicated with the first inlet so that the gas-liquid mixture in the reboiler flows into the regeneration tower; A liquid distribution component, wherein the liquid distribution component has a channel and is arranged in the first inlet, the channel extends along the circumference of the regeneration tower and the two ends of the channel are respectively connected to the reboiler and the chamber, so that the gas-liquid mixture in the reboiler flows into the regeneration tower through the channel.

2. The regeneration system according to claim 1, characterized in that: The liquid dispensing component comprises: Mounting plate; a liquid distributing member, the liquid distributing member being arranged on the mounting plate, and the cross-sectional area of ​​the outer peripheral surface of the liquid distributing member gradually increases from the first inlet toward the interior of the regeneration tower; A liquid distribution plate is arranged on the mounting plate and located on one side of the liquid distribution member. The liquid distribution plate and the liquid distribution member are spaced apart to form the channel so that the airflow flowing into the first inlet flows into the regeneration tower through the liquid distribution member.

3. The regeneration system according to claim 2, characterized in that: The liquid distribution component includes a first plate and a second plate, the first plate and the second plate are both vertical plates and are both arranged on the mounting plate, the first plate and the second plate both extend from the first inlet toward the interior of the regeneration tower, one end of the first plate is connected to one end of the second plate and the extension direction of the first plate and the extension direction of the second plate intersect at an angle, the liquid distribution plate is arranged on a side of the first plate away from the second plate, and / or the liquid distribution plate is arranged on a side of the second plate away from the first plate.

4. The regeneration system according to claim 3, characterized in that: The liquid distribution plate comprises: A plurality of first liquid distribution plates, each of which is a vertical plate and is disposed on the mounting plate, each of which is disposed on a side of the first plate away from the second plate, each of which extends from the first inlet toward the interior of the regeneration tower, and the extension direction of the first liquid distribution plate intersects the radial direction of the regeneration tower at an angle, and the plurality of first liquid distribution plates are arranged at intervals, and two adjacent first liquid distribution plates define the channel; And / or, multiple second liquid distribution plates, multiple second liquid distribution plates are vertical plates and are all arranged on the mounting plate, multiple second liquid distribution plates are all arranged on the side of the second plate away from the first plate, each second liquid distribution plate extends from the first inlet toward the interior of the regeneration tower and the extension direction of the second liquid distribution plate intersects the radial direction of the regeneration tower at an angle, multiple second liquid distribution plates are arranged at intervals, and two adjacent second liquid distribution plates define the channel.

5. The regeneration system according to claim 4, characterized in that: At least a portion of the first liquid distribution plate extends along the circumference of the regeneration tower and is inclined toward the interior of the regeneration tower. And / or, at least a portion of the second liquid distribution plate extends along the circumference of the regeneration tower and is inclined toward the inside of the regeneration tower.

6. The regeneration system according to claim 4, characterized in that: The distance between two adjacent first liquid distribution plates gradually increases in a direction away from the liquid distribution member. And / or, the distance between two adjacent second liquid distribution plates gradually increases in a direction away from the liquid distribution member.

7. The regeneration system according to claim 4, characterized in that: The distance between two adjacent first liquid distribution plates gradually increases from top to bottom. And / or, the distance between two adjacent second liquid distribution plates gradually increases from top to bottom.

8. The regeneration system according to claim 1, characterized in that: There are multiple first inlets, which are spaced apart along the circumference of the regeneration tower; there are multiple liquid distribution components, which are arranged in the first inlets in a one-to-one correspondence; and the reboiler is connected to the multiple first inlets.

9. The regeneration system according to claim 8, characterized in that: It also includes a delivery pipe, which surrounds the outer circumference of the regeneration tower, and one end of the delivery pipe is connected to the reboiler so that the gas-liquid mixture in the reboiler flows into the delivery pipe. The delivery pipe is provided with a plurality of delivery ports, and the plurality of delivery ports are connected to the plurality of first inlets in a one-to-one correspondence.

10. A flue gas treatment system, characterized in that: include: an absorption tower, wherein a lean liquid is arranged in the absorption tower and is suitable for passing flue gas, so that the lean liquid absorbs carbon dioxide in the flue gas to convert the lean liquid into a rich liquid; A regeneration system, wherein the regeneration system is the regeneration system of any one of claims 1 to 9, wherein one end of the regeneration tower of the regeneration system is connected to one end of the absorption tower so that the rich liquid in the absorption tower flows into the regeneration tower to decompose the rich liquid into a lean liquid, and the other end of the regeneration tower is connected to the other end of the absorption tower so that the lean liquid in the regeneration tower flows into the absorption tower.

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